PageRank is not the only factor that Google uses to rank search results. Google uses more than 200 “signals”to calculate the rank of a page. According to a survey of SEO experts, the top 10 most important factors include the following:

Keyword use in title tag

Anchor text of inbound link

Global link popularity of site

Age of site

Link popularity within the site’s internal link structure

Topical relevance of inbound links to site

Link popularity of site in topical community

Keyword use in body text

Global link popularity of linking site

Topical relationship of linking page

The top factors that negatively affect a search engine spider’s ability to crawl a page or harm its rankings are as follows: